PIRSA:13010005

Solid of Inflation: An alternative symmetry breaking pattern for an EFT of inflation

Endlich, S. (2012). Solid of Inflation: An alternative symmetry breaking pattern for an EFT of inflation. Perimeter Institute. https://pirsa.org/13010005

Endlich, Solomon. Solid of Inflation: An alternative symmetry breaking pattern for an EFT of inflation. Perimeter Institute, Nov. 15, 2012, https://pirsa.org/13010005 

          @misc{ pirsa_PIRSA:13010005,
            doi = {10.48660/13010005},
            url = {https://pirsa.org/13010005},
            author = {Endlich, Solomon},
            keywords = {Cosmology},
            language = {en},
            title = {Solid of Inflation: An alternative symmetry breaking pattern for an EFT of inflation},
            publisher = {Perimeter Institute},
            year = {2012},
            month = {nov},
            note = {PIRSA:13010005 see, \url{https://pirsa.org}}
          }

Solomon Endlich Stanford University

DOI 10.48660/13010005
Collection
Talk Type Scientific Series
Subject

Abstract

In this talk I will discuss a cosmological model where primordial inflation is driven by a `solid', defined as a system of three derivatively coupled scalar fields obeying certain symmetries and spontaneously breaking a certain subgroup of these. The symmetry breaking pattern differs drastically from that of standard inflationary models: time translations are unbroken. This prevents our model from fitting into the standard effective field theory description of adiabatic perturbations. Consequently, it exhibits a novel non-Gaussian `shape'.